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Published on: February 23, 2014
Norovirus: a possible cause of pneumatosis intestinalis
Mi Jin Kim1, Yae-Jean Kim, Ji Hyuk Lee
1Department of Pediatrics, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea.
Insights
Norovirus infection may cause pneumatosis intestinalis (PI) in children, particularly those who are immunocompromised. This study identified norovirus in four pediatric patients with PI, suggesting a potential link between this viral infection and the condition.
Area of Science:
- Pediatric Gastroenterology
- Infectious Diseases
- Virology
Background:
- Pneumatosis intestinalis (PI) in children is often linked to conditions such as immunosuppression, trauma, and gastrointestinal infections.
- Previous studies have not reported a connection between norovirus infection and PI.
Purpose of the Study:
- To investigate the potential association between norovirus infection and the development of pneumatosis intestinalis in pediatric patients.
- To identify pathogens in children diagnosed with PI.
Main Methods:
- A retrospective review of pediatric patients (older than 30 days) with PI from March 2005 to April 2009.
- Utilized reverse-transcriptase polymerase chain reaction (RT-PCR) for viral stool examinations since December 2008.
Main Results:
- Twenty-seven pediatric patients with PI were identified; 17 (63.0%) were immunocompromised.
- Norovirus (genotype GII-4) was detected in 4 out of 5 immunocompromised patients tested since December 2008, predominantly during the cold season.
- Twenty-four patients (88.9%) survived; no deaths were associated with norovirus or rotavirus infections.
Conclusions:
- Norovirus infection is a potential contributing factor to pneumatosis intestinalis in immunocompromised children.
- Further research is warranted to confirm the causal relationship between norovirus and PI.
Objective:
Pneumatosis intestinalis (PI) in children is associated with immunosuppression, mucosal disruption from trauma, obstructive pulmonary disease, congenital heart disease, and gastrointestinal infections. Our study is the first report of norovirus infection-associated PI.
Patients And Methods:
A retrospective review was performed in pediatric patients (older than 30 days) with PI from March 2005 to April 2009. Since December 2008, in addition to routine stool examinations, reverse-transcriptase polymerase chain reaction testing for calicivirus (norovirus and sapovirus), adenovirus, astrovirus, and enterovirus has been performed.
Results:
Twenty-seven patients with PI were identified. The median age was 1.4 (range 0.2-14.8 years). Seventeen patients (63.0%) were immunocompromised hosts. Pathogens were identified in 5 immunocompromised patients (5/27 and 5/8 since December 2008). Of note, norovirus was identified in 4 patients (80%, 4/5) during the cold weather season. The genotype of noroviruses in these patients was GII-4. Among 27 patients with PI, 10 patients (37.0%) developed PI in the spring and 11 (40.7%) in the winter. Twenty-four patients survived (88.9%, 24/27). None of the patients with norovirus or rotavirus infection died.
Conclusions:
Our data suggest that norovirus infection may contribute to the development of PI in immunocompromised hosts.
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